He arranged to meet each of the girls in secluded parks at Maitland and Charlestown, over the past two months, where he sexually assaulted them.

In a third matter, a children's case worker employed by the NSW Department of Family and Community Services remains in custody charged with sexually abusing a nine-year-old girl who had been living with his partner.

He did not appear in person in Newcastle Bail Court on Saturday, and bail was refused.

Last Wednesday, a 27-year-old childcare worker was charged with the alleged sexual and indecent assaults of two children, aged eight and nine, at an out-of-school-hours childcare care centre in Sydney's northwest.